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#define _POSIX_C_SOURCE 200809L
#include <json-c/json.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <wlr/util/log.h>
#include "swaybar/config.h"
#include "swaybar/status_line.h"
static void i3bar_block_free(struct i3bar_block *block) {
if (!block) {
return;
}
wl_list_remove(&block->link);
free(block->full_text);
free(block->short_text);
free(block->align);
free(block->name);
free(block->instance);
free(block->color);
}
static bool i3bar_parse_json(struct status_line *status, const char *text) {
struct i3bar_block *block, *tmp;
wl_list_for_each_safe(block, tmp, &status->blocks, link) {
i3bar_block_free(block);
}
json_object *results = json_tokener_parse(text);
if (!results) {
status_error(status, "[failed to parse i3bar json]");
return false;
}
wlr_log(L_DEBUG, "Got i3bar json: '%s'", text);
for (size_t i = 0; i < json_object_array_length(results); ++i) {
json_object *full_text, *short_text, *color, *min_width, *align, *urgent;
json_object *name, *instance, *separator, *separator_block_width;
json_object *background, *border, *border_top, *border_bottom;
json_object *border_left, *border_right, *markup;
json_object *json = json_object_array_get_idx(results, i);
if (!json) {
continue;
}
json_object_object_get_ex(json, "full_text", &full_text);
json_object_object_get_ex(json, "short_text", &short_text);
json_object_object_get_ex(json, "color", &color);
json_object_object_get_ex(json, "min_width", &min_width);
json_object_object_get_ex(json, "align", &align);
json_object_object_get_ex(json, "urgent", &urgent);
json_object_object_get_ex(json, "name", &name);
json_object_object_get_ex(json, "instance", &instance);
json_object_object_get_ex(json, "markup", &markup);
json_object_object_get_ex(json, "separator", &separator);
json_object_object_get_ex(json, "separator_block_width", &separator_block_width);
json_object_object_get_ex(json, "background", &background);
json_object_object_get_ex(json, "border", &border);
json_object_object_get_ex(json, "border_top", &border_top);
json_object_object_get_ex(json, "border_bottom", &border_bottom);
json_object_object_get_ex(json, "border_left", &border_left);
json_object_object_get_ex(json, "border_right", &border_right);
struct i3bar_block *block = calloc(1, sizeof(struct i3bar_block));
block->full_text = full_text ?
strdup(json_object_get_string(full_text)) : NULL;
block->short_text = short_text ?
strdup(json_object_get_string(short_text)) : NULL;
if (color) {
block->color = malloc(sizeof(uint32_t));
*block->color = parse_color(json_object_get_string(color));
}
if (min_width) {
json_type type = json_object_get_type(min_width);
if (type == json_type_int) {
block->min_width = json_object_get_int(min_width);
} else if (type == json_type_string) {
/* the width will be calculated when rendering */
block->min_width = 0;
}
}
block->align = strdup(align ? json_object_get_string(align) : "left");
block->urgent = urgent ? json_object_get_int(urgent) : false;
block->name = name ? strdup(json_object_get_string(name)) : NULL;
block->instance = instance ?
strdup(json_object_get_string(instance)) : NULL;
if (markup) {
block->markup = false;
const char *markup_str = json_object_get_string(markup);
if (strcmp(markup_str, "pango") == 0) {
block->markup = true;
}
}
block->separator = separator ? json_object_get_int(separator) : true;
block->separator_block_width = separator_block_width ?
json_object_get_int(separator_block_width) : 9;
// Airblader features
block->background = background ?
parse_color(json_object_get_string(background)) : 0;
block->border = border ?
parse_color(json_object_get_string(border)) : 0;
block->border_top = border_top ? json_object_get_int(border_top) : 1;
block->border_bottom = border_bottom ?
json_object_get_int(border_bottom) : 1;
block->border_left = border_left ? json_object_get_int(border_left) : 1;
block->border_right = border_right ?
json_object_get_int(border_right) : 1;
wl_list_insert(&status->blocks, &block->link);
}
return true;
}
bool i3bar_handle_readable(struct status_line *status) {
struct i3bar_protocol_state *state = &status->i3bar_state;
char *cur = &state->buffer[state->buffer_index];
ssize_t n = read(status->read_fd, cur,
state->buffer_size - state->buffer_index);
if (n == 0) {
return 0;
}
if (n == (ssize_t)(state->buffer_size - state->buffer_index)) {
state->buffer_size = state->buffer_size * 2;
char *new_buffer = realloc(state->buffer, state->buffer_size);
if (!new_buffer) {
free(state->buffer);
status_error(status, "[failed to allocate buffer]");
return -1;
}
state->buffer = new_buffer;
}
bool redraw = false;
while (*cur) {
if (state->nodes[state->depth] == JSON_NODE_STRING) {
if (!state->escape && *cur == '"') {
--state->depth;
}
state->escape = !state->escape && *cur == '\\';
} else {
switch (*cur) {
case '[':
++state->depth;
if (state->depth >
sizeof(state->nodes) / sizeof(state->nodes[0])) {
status_error(status, "[i3bar json too deep]");
return false;
}
state->nodes[state->depth] = JSON_NODE_ARRAY;
if (state->depth == 1) {
state->current_node = cur;
}
break;
case ']':
if (state->nodes[state->depth] != JSON_NODE_ARRAY) {
status_error(status, "[failed to parse i3bar json]");
return false;
}
--state->depth;
if (state->depth == 0) {
// cur[1] is valid since cur[0] != '\0'
char p = cur[1];
cur[1] = '\0';
redraw = i3bar_parse_json(
status, state->current_node) || redraw;
cur[1] = p;
memmove(state->buffer, cur,
state->buffer_size - (cur - state->buffer));
cur = state->buffer;
state->current_node = cur + 1;
}
break;
case '"':
++state->depth;
if (state->depth >
sizeof(state->nodes) / sizeof(state->nodes[0])) {
status_error(status, "[i3bar json too deep]");
return false;
}
state->nodes[state->depth] = JSON_NODE_STRING;
break;
}
}
++cur;
}
state->buffer_index = cur - state->buffer;
return redraw;
}
void i3bar_block_send_click(struct status_line *status,
struct i3bar_block *block, int x, int y, uint32_t button) {
wlr_log(L_DEBUG, "block %s clicked", block->name ? block->name : "(nil)");
if (!block->name || !status->i3bar_state.click_events) {
return;
}
struct json_object *event_json = json_object_new_object();
json_object_object_add(event_json, "name",
json_object_new_string(block->name));
if (block->instance) {
json_object_object_add(event_json, "instance",
json_object_new_string(block->instance));
}
json_object_object_add(event_json, "button", json_object_new_int(button));
json_object_object_add(event_json, "x", json_object_new_int(x));
json_object_object_add(event_json, "y", json_object_new_int(y));
dprintf(status->write_fd, "%s\n", json_object_to_json_string(event_json));
json_object_put(event_json);
}
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